html{scroll-behavior:smooth}
.m4-page{--p:#1f4ed8;--pd:#0c2a73;--a:#f59e0b;--muted:#5b6577;font-family:'Inter',-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:#0f1729;background:#fff;line-height:1.7;overflow-x:hidden}
.m4-page,.m4-page *{box-sizing:border-box}
.m4-page h1,.m4-page h2,.m4-page h3,.m4-page p,.m4-page ul{margin:0;padding:0}
.m4-page img{display:block;max-width:100%}
.m4-page section[id]{scroll-margin-top:84px}
.m4-page .btn{display:inline-block;padding:13px 24px;border-radius:40px;font-weight:700;text-decoration:none;transition:.2s}
.m4-page .btn-a{background:var(--a);color:#1a1300;box-shadow:0 8px 22px rgba(245,158,11,.35)}
.m4-page .btn-a:hover{transform:translateY(-2px)}
.m4-page .btn-ghost{border:1.5px solid rgba(255,255,255,.7);color:#fff}
/* NAV (giong trang chu) */
.m4-page nav.m4nav{position:fixed;top:0;left:0;right:0;z-index:120;transition:.3s;background:rgba(8,18,48,.55);backdrop-filter:blur(6px)}
.m4-page nav.m4nav.scrolled{background:rgba(8,18,48,.94);border-bottom:1px solid rgba(255,255,255,.08)}
.m4-page nav.m4nav .w{max-width:1180px;margin:0 auto;padding:0 22px;display:flex;align-items:center;justify-content:space-between;height:66px}
.m4-page .logo{color:#fff;font-weight:800;font-size:19px;letter-spacing:.5px;text-decoration:none}
.m4-page .logo span{color:var(--a)}
.m4-page .nav-links{display:flex;gap:22px}
.m4-page .nav-links a{color:#dbe3f2;text-decoration:none;font-size:14px;font-weight:600}
.m4-page .nav-links a:hover,.m4-page .nav-links a.on{color:#fff}
.m4-page .nav-links a.on{color:var(--a)}
.m4-page .nav-cta{background:var(--a);color:#1a1300;padding:8px 16px;border-radius:30px;font-weight:700;font-size:13.5px;text-decoration:none;white-space:nowrap}
@media(max-width:820px){.m4-page .nav-links{display:none}}
/* PAGE HERO */
.m4-page .phero{padding:130px 0 56px;background:radial-gradient(900px 480px at 50% -10%,#1a3c8f,#0a1838 75%);color:#fff;text-align:center}
.m4-page .phero .w2{max-width:860px}
.m4-page .eyebrow{display:inline-block;background:rgba(245,158,11,.16);color:#ffd98a;padding:7px 16px;border-radius:30px;font-size:12.5px;font-weight:700;letter-spacing:.6px;text-transform:uppercase}
.m4-page .phero h1{font-size:clamp(27px,3.8vw,42px);line-height:1.18;font-weight:800;margin:14px 0 10px;color:#fff;text-shadow:0 4px 22px rgba(0,0,0,.4)}
.m4-page .phero h1 em{color:var(--a);font-style:normal}
.m4-page .phero .sub{color:#c7d2e8;font-size:clamp(14.5px,1.6vw,17px);max-width:60ch;margin:0 auto}
.m4-page .chips{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:22px}
.m4-page .chip{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:#dbe3f2;padding:8px 16px;border-radius:30px;font-weight:600;font-size:13.5px;text-decoration:none;transition:.2s}
.m4-page .chip:hover{background:var(--a);border-color:var(--a);color:#1a1300}
/* LAYOUT */
.m4-page .block{padding:64px 0;background:#fff}
.m4-page .block.alt{background:#f6f8fc}
.m4-page .w2{max-width:1120px;margin:0 auto;padding:0 22px}
.m4-page .head{text-align:center;max-width:720px;margin:0 auto 36px}
.m4-page .head .k{color:var(--p);font-weight:800;text-transform:uppercase;letter-spacing:1px;font-size:13px}
.m4-page .head h2{font-size:clamp(23px,2.8vw,32px);font-weight:800;margin-top:8px;color:#0f1729}
.m4-page .head h2::after{content:"";display:block;width:54px;height:4px;border-radius:2px;background:var(--a);margin:12px auto 0}
.m4-page .head p{color:var(--muted);margin-top:10px;font-size:15.5px}
/* BANG GIA TABLE */
.m4-page .twrap{width:100%;overflow-x:auto}
.m4-page table.pt{width:100%;border-collapse:separate;border-spacing:0;background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 14px 40px rgba(12,42,115,.10);font-size:15px}
.m4-page .pt th{background:var(--pd);color:#fff;padding:13px 16px;text-align:left;font-size:12.5px;letter-spacing:.8px;text-transform:uppercase;font-weight:700}
.m4-page .pt td{padding:13px 16px;border-bottom:1px solid #eef1f7;color:#2a3349}
.m4-page .pt tbody tr:last-child td{border-bottom:0}
.m4-page .pt tbody tr:nth-child(even){background:#f7f9fd}
.m4-page .pt tbody tr:hover{background:#eef3ff}
.m4-page .pt .gia{color:var(--pd);font-weight:800;white-space:nowrap}
.m4-page .pt .tenfull{font-weight:700;color:#0f1729}
.m4-page .note{margin-top:14px;background:#fff8ec;border:1px solid #ffe2ae;color:#7a5200;border-radius:12px;padding:12px 16px;font-size:14px}
@media(max-width:680px){
.m4-page .pt thead{display:none}
.m4-page .pt,.m4-page .pt tbody,.m4-page .pt tr,.m4-page .pt td{display:block;width:100%}
.m4-page .pt tr{border-bottom:1px solid #e6ebf5;padding:10px 14px}
.m4-page .pt td{display:flex;justify-content:space-between;gap:14px;padding:7px 0;border:none;text-align:right}
.m4-page .pt td::before{content:attr(data-label);font-weight:600;color:#5b6577;text-align:left}
}
/* THIET BI GRID */
.m4-page .egrid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.m4-page .ecard{background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 10px 28px rgba(12,42,115,.10);text-decoration:none;display:block;transition:.25s}
.m4-page .ecard .im{aspect-ratio:4/3;overflow:hidden;background:#eef1f7}
.m4-page .ecard .im img{width:100%;height:100%;object-fit:cover;transition:.5s}
.m4-page .ecard:hover{transform:translateY(-5px);box-shadow:0 20px 44px rgba(12,42,115,.18)}
.m4-page .ecard:hover .im img{transform:scale(1.07)}
.m4-page .ecard .tx{padding:14px 16px 16px}
.m4-page .ecard .tx b{color:#0f1729;font-size:15px;line-height:1.45;display:block}
.m4-page .ecard .tx span{display:block;font-size:12.5px;color:var(--muted);margin-top:5px}
.m4-page .ecard .tx .tag{display:inline-block;background:#eef3ff;color:var(--pd);font-weight:700;font-size:11.5px;padding:3px 10px;border-radius:20px;margin-bottom:8px;letter-spacing:.4px;text-transform:uppercase}
@media(max-width:980px){.m4-page .egrid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:680px){.m4-page .egrid{grid-template-columns:1fr 1fr;gap:12px}.m4-page .block{padding:48px 0}}
/* CTA BAND */
.m4-page .ctaband{padding:70px 0;background:linear-gradient(135deg,#0c2a73,#1f4ed8 60%,#f59e0b 200%);color:#fff;text-align:center}
.m4-page .ctaband h2{font-size:clamp(23px,3.2vw,36px);font-weight:800;margin-bottom:10px;color:#fff}
.m4-page .ctaband p{color:#dce5ff;margin-bottom:20px;font-size:16.5px}
.m4-page .ctaband .ph{font-size:22px;font-weight:800;margin-bottom:16px}
.m4-page .ctaband .row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
/* FOOTER */
.m4-page footer.f{background:#070f24;color:#9fb0cf;padding:40px 0 28px;font-size:14px}
.m4-page footer.f .w2{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;align-items:flex-start}
.m4-page footer.f b{color:#fff}
.m4-page footer.f .col{max-width:280px}
.m4-page footer.f a{color:#9fb0cf;text-decoration:none;display:block;margin:5px 0}
.m4-page footer.f a:hover{color:#fff}
.m4-page footer.f .copy{border-top:1px solid rgba(255,255,255,.08);margin-top:24px;padding-top:18px;text-align:center;font-size:13px}
/* REVEAL */
.m4-page .reveal{opacity:0;transform:translateY(34px);transition:.8s}
.m4-page .reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
.m4-page *,.m4-page *::before,.m4-page *::after{animation:none!important;transition:none!important}
.m4-page .reveal{opacity:1;transform:none}
}
/* v2: components cho Dich vu + Lien he */
.m4-page .sgrid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.m4-page .scard{background:#fff;border-radius:18px;overflow:hidden;box-shadow:0 14px 36px rgba(12,42,115,.10);display:flex;flex-direction:column;transition:.25s}
.m4-page .scard:hover{transform:translateY(-5px);box-shadow:0 24px 52px rgba(12,42,115,.18)}
.m4-page .scard .im{aspect-ratio:16/9;overflow:hidden;display:block}
.m4-page .scard .im img{width:100%;height:100%;object-fit:cover;transition:.5s}
.m4-page .scard:hover .im img{transform:scale(1.06)}
.m4-page .scard .bd{padding:20px 22px 22px;display:flex;flex-direction:column;gap:0;flex:1}
.m4-page .scard h3{font-size:19px;font-weight:800;color:#0f1729;margin-bottom:8px}
.m4-page .scard h3 a{color:#0f1729;text-decoration:none}
.m4-page .scard h3 a:hover{color:var(--p)}
.m4-page .scard p{color:var(--muted);font-size:14.5px;margin-bottom:14px}
.m4-page .scard .row{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;margin-top:auto}
.m4-page .scard .price{background:var(--pd);color:#fff;font-weight:700;padding:7px 14px;border-radius:9px;font-size:13.5px}
.m4-page .scard .more{color:var(--p);font-weight:700;font-size:14.5px;text-decoration:none}
.m4-page .scard .more:hover{text-decoration:underline}
@media(max-width:760px){.m4-page .sgrid{grid-template-columns:1fr}}
.m4-page .wgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.m4-page .wc{background:#fff;border:1px solid #e8edf6;border-radius:16px;padding:22px 20px;box-shadow:0 8px 22px rgba(12,42,115,.06)}
.m4-page .wc i{font-style:normal;font-size:22px;display:block;margin-bottom:8px}
.m4-page .wc h3{font-size:16.5px;font-weight:800;color:#0f1729;margin-bottom:6px}
.m4-page .wc p{color:var(--muted);font-size:14px}
@media(max-width:820px){.m4-page .wgrid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.m4-page .wgrid{grid-template-columns:1fr}}
.m4-page .faq{max-width:820px;margin:0 auto}
.m4-page .faq details{background:#fff;border:1px solid #e8edf6;border-radius:14px;margin-bottom:12px;box-shadow:0 6px 18px rgba(12,42,115,.05);overflow:hidden}
.m4-page .faq summary{cursor:pointer;font-weight:700;color:#0f1729;padding:16px 20px;font-size:15.5px;list-style:none;position:relative;padding-right:50px}
.m4-page .faq summary::-webkit-details-marker{display:none}
.m4-page .faq summary::after{content:"+";position:absolute;right:16px;top:50%;transform:translateY(-50%);width:26px;height:26px;border-radius:50%;background:#eef3ff;color:var(--pd);font-weight:800;display:flex;align-items:center;justify-content:center}
.m4-page .faq details[open] summary::after{content:"\2212";background:var(--a);color:#1a1300}
.m4-page .faq details p{padding:0 20px 16px;color:#3d4860;font-size:14.5px}
.m4-page .cgrid{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:stretch}
.m4-page .cbox{background:#fff;border:1px solid #e8edf6;border-radius:18px;padding:26px;box-shadow:0 12px 30px rgba(12,42,115,.08)}
.m4-page .cbox h3{font-size:18px;font-weight:800;color:#0f1729;margin-bottom:14px}
.m4-page .cline{display:flex;align-items:center;gap:10px;margin:10px 0;color:#2a3349;font-size:15px}
.m4-page .cline a{color:var(--p);font-weight:600;text-decoration:none}
.m4-page .cline a:hover{text-decoration:underline}
.m4-page .cbtns{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.m4-page .cbtn{display:inline-block;padding:12px 20px;border-radius:12px;font-weight:700;text-decoration:none;color:#fff;font-size:14.5px;transition:.2s}
.m4-page .cbtn:hover{transform:translateY(-2px);color:#fff}
.m4-page .cbtn.call{background:#1d9e75}
.m4-page .cbtn.zalo{background:#0068ff}
.m4-page .cbtn.fb{background:#1877f2}
.m4-page .cbtn.yt{background:#e02424}
.m4-page .cbtn.ig{background:linear-gradient(45deg,#f09433,#dc2743,#bc1888)}
@media(max-width:760px){.m4-page .cgrid{grid-template-columns:1fr}}